A week ago I was in Zagreb on Open Translation Tools 2007 conference.
One of the guys there wa Adam Hyde who created
http://flossmanuals.net/. This is a website based on twiki which is
multilingual by design. You can create/edit content, translate content
etc. It outputs PDF, HTML and zipped HTML, maybe even more.
Do we want to invest time into figuring out how it might fit our workflow?